In ETL-C IP bullet cameras, a fixed lens uses one focal length, providing a set viewing angle for installations with a known coverage area. A varifocal lens allows installers to adjust the viewing angle and image framing, with motorized options supporting remote zoom and autofocus for easier setup.

When installing ETL-C IP bullet cameras outdoors, select a model with IP67-rated ingress protection, use a stable mounting surface, and position the camera to limit exposure to weather, debris, dust, and direct glare. Plan the Ethernet and Power over Ethernet (PoE) connection, select a fixed or varifocal lens for the scene, and confirm that infrared night vision, local micro SD storage, or NVR recording meet the surveillance needs.

Power over Ethernet (PoE) lets an ETL-C IP bullet camera receive power and transmit video through one Ethernet cable connected to compatible PoE equipment. Local microSD storage supports standalone recording and app access, while an NVR can record video from multiple cameras as part of a larger surveillance system.

When choosing ETL-C IP bullet cameras, compare 4MP and 8MP resolutions, along with fixed or varifocal lenses, to match image detail and coverage needs. Look for True Wide Dynamic Range (WDR) to help balance bright and shadowed areas, and compare infrared night vision ranges of up to 25 or 60 meters based on the scene.